Thrashing-machine



` (No Model.)

W. KING. THRASHING MACHINE.

110.401,705. Patented Apr. 16, 1889.

N. Prrzns, Pnomumugmpm. wnsmngmn, D. c.

'UNITED STnrns .armar @trium vVILLIAM KING, OF ST. JAMES, MINNESOTA.

THRASHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 401,705, dated April 16, 1889.

Application filed July 25,1888. Serial No. 280,968. (No model.)

To @ZZ whom, it may concern:

Be it known that I, WILLIAM KING, of St. Jamesin the county of lVatonwan and State of Minnesota, have invented certain newand useful Improvements in Thrashing-Machines, of which the following is a specification, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The object of my invention is to provide a thrashing-machine with devices for separating the grain from the straw, which will be more efficient in operation, and, being simpler, require less power to operate them.

My invention consists in the several details of construction and arrangement, here inafter fully set forth.

In the, drawings, Figure l is a vertical longitudinal section of a thrashing-machine provided with my improved separator. Fig. 2 is a vertical transverse section, and Figs. 3 and 4 are plan views of different parts of the separator.

Similar letters of reference indicate similar parts in the respective figures.

A is the thrashing-machine.

B is the cylinder, and C the concave, the cylinder and concave being provided with thrashing-teeth in the ordinary manner.

D is abeater which serves to stop tho flying grain when it leaves the cylinder.

The shaker consists of two floors, E E2, and the carrier E, the floor E being formed of a series of slats, e, secured to two stringers, e. These slats, as seen in cross-section, are in the form of a rightangled triangle, and arranged just far enough apart to allow the grain, which will slide down their incline faces e2, to pass between them, while the short straw and most of the chaff will be carried along on the slats and discharged at the rear end of the machine. The floor E is horizontal and extends under the concave a` short distance, a sufficient space being left between them to enable the shaker to clear the concave when the former is lifted in the operation of shaking. The floor E2 is slatted in a manner similar to that of the floor E', and the carrier E consists of a series of longitudinal strips, f, arranged about three inches apart, extending from the slatted floor E2 to the straw-discharge opening in the rear of the machine. These strips f are each provided with pins f', which entend upward and have an inclination toward the rear of the machine. The iioor E2 is attached to the lower iioor, E', as shown, and inclined upward at an angle of about twenty degrees. The strips f are attached to the floor E2 and extend rearward at a less degree of inclination. They are suitably braced together laterally and supported at their rear ends by the standards f2, secured to the sides of the lower floor, E.

K K are rock-shafts, on which are mounted arms K2 K3, which support the shaker on each side, and also the grain-tray M. These arms K2 K3 are mounted on the shafts about midway of their connections to the shaker and tray, respectively. One of the arms, K2, eXn tends downward and is connected by the rod 7o to the crank L. The tray M has a slight decline toward the rear of the machine, and is provided with a screen, m, at its rear end, through which the grain falls into the hopper W'. The other portion of the bottoni of the tray is solid.

The operation is as follows: The straw and grain are forced from the concave upon the horizontal part of the shaker and up the inclined floor E2 onto the longitudinal slatted carrier. The shaker is given ashaking movement both longitudinally and up and down by the crank movement. A The up-and-down Inovement is important, as it violently tosses the straw Aand shakes out the grain therefrom. The sti-aw having been carried or thrown up to the longitudinally-slatted carrier E, is caught and tossed up by the pins f, each series throwing the straw to the next series in advance. The grain having been shaken upon the door E', the arrangement of the slats thereof is such that only the grain can pass through to the tray M, the refuse being carried rearward, whence it is discharged. It will be seen that the tray M is also violently shaken coincidently with but reversely of the shaker, and that its movement, together with its inclination, rapidly carries the grain to the hopper W.

The advantages of the construction are apparent, and are dependent upon the peculiar construction of the Several parts of the shaker, the movement given thereto,and to the ar- IOO rangement of the sha-ker, so constructed and ing over the floor E and being provided with operated with a ooincidently-moving inclined rearwardly-inclined pins f', combined with screen. the shafts K K', arms K2 K3, mounted on said I5 I disclaim perforated sha-kers, as also shakshafts, a crank, und a connecting -1od, subing trays used in connection therewith; but, stantially as set forth.

Having described my invention, I elaim- In testimony Vwhereof I have hereunto set In a, thrashing-machine, the shakereonsistmy hand and seal. ing' of the angularly and transversely slatted WILLIAM KING [L s] floors E E2 and the longitudinally-Matted carrier E, rigidly mounted thereon, the floor E Witnesses:

being horizontal and the iioor E2 and carrier J. J. THORNTON, E inclined, as shown, the shaker E eXtend- R. ASHERWOOD. 

